OSIAN is an open-source corpus compiled from 31 international Arabic news broadcasting platforms. The clean and filtered data consists of about 3.5 million articles which are extracted from 6 million web-pages. These articles comprise of over 37 million sentences and roughly 1 billion tokens [1]}. This effort aimed to build a balanced corpus in which the data must be drawn from a wide range of reliable and freely available sources. The crawling was conducted in the month of March 2018. Table REF  lists the demography and domain-wise statistics of the corpus.
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